| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at which it be [verb] | 53 |
|
| 2 | at which it be [vb pp] | 51 |
|
| 3 | at which it was [verb] | 31 |
|
| 4 | at which it is [verb] | 20 |
|
| 5 | at which it be decide | 5 |
|
| 6 | at which it be decided | 5 |
|
